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Current Drive Experiments on the PLT Tokamak

Autor: E. Meservey, S. von Goeler, J. E. Stevens, S. Bernabei, J. Hosea, P. C. Efthimion, R. W. Motley, E. Mazzucato, F. C. Jobes, W. Hooke

Publikováno v: Physica Scripta. :418-422

Lower hybrid current-drive experiments have been carried out on the PLT Tokamak. Steady currents up to 175 kA have been maintained for three seconds and 400 kA for 0.3 sec by the rf power alone. The principal current carrier appears to be a high ener

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ba96dae0d96eaa7270c9a8e992f2e50e
https://doi.org/10.1088/0031-8949/1982/t2b/018

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Aluminium limiter experiment in ST tokamak

Autor: Einar Hinnov, E. Meservey, N. L. Bretz, D. Dimock

Publikováno v: Nuclear Fusion. 16:593-598

To investigate the effects of a light-element limiter on plasma parameters, aluminium rail limiters interchangeable with Mo rails were installed top, bottom, and outside directions in the ST tokamak. The inside limiter remained a fixed Mo rail. Compa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b484194d41d5346a03647ac33c00b75f
https://doi.org/10.1088/0029-5515/16/4/004

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Radiation losses in PLT during neutral-beam and ICRF heating experiments

Autor: D. Dimock, D. Hwang, Einar Hinnov, P. Colestock, G. L. Schmidt, K. Bol, N. Bretz, H. Hsuan, Szymon Suckewer, J.F. Schivell, Robert James Goldston, David W. Johnson, E. Meservey, J.C. Hosea, R. J. Hawryluk, D. H. McNeill, H.P. Eubank

Publikováno v: Nuclear Fusion. 21:981-991

Radiation and charge-exchange losses in the PLT tokamak are compared for discharges with Ohmic heating only (OH), and with additional heating by neutral beams (NB) or RF in the ion cyclotron frequency range (ICRF). Spectroscopic, bolometric and soft-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::97cc2f4f8fc4ec7efe082f40c8c376a2
https://doi.org/10.1088/0029-5515/21/8/007

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Suppression of internal disruptions in inductively driven tokamak discharges by lower hybrid wave current drive

Autor: W. Hooke, F. C. Jobes, S. Bernabei, S. von Goeler, J. E. Stevens, E. Meservey, T. K. Chu, E. Mazzucato, R.E. Bell, A. Cavallo, S. Guharay, D. H. McNeill, R. W. Motley, J. Hosea

Publikováno v: Nuclear Fusion. 26:666-670

Internal disruptions occurring in an inductively driven discharge are suppressed by lower hybrid waves that drive the plasma current in the same direction as the inductively driven current. Upon suppression, in the central region a finite-amplitude,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4b8ec6d2d46a40f2b554833e20513476
https://doi.org/10.1088/0029-5515/26/5/012

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Angular distribution of the bremsstrahlung emission during lower hybrid current drive on PLT

Autor: S. Bernabei, J. Mervine, J. Stevens, P. C. Efthimion, S. von Goeler, R.W. Motley, Nathaniel J. Fisch, Charles F. F. Karney, W. Hooke, T. K. Chu, F. C. Jobes, K. Silber, G. Taylor, E. Meservey, K. W. Hill, Manfred Bitter, J. C. Hosea, P. Roney, S. Sesnic

Publikováno v: Nuclear Fusion. 25:1515-1528

The bremsstrahlung emission from the PLT tokamak during lower-hybrid current drive has been measured as a function of angle between the magnetic field and the emission direction. The emission is peaked strongly in the forward direction, indicating a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bcacd4a6ca2e34f945deeb7769a2a569
https://doi.org/10.1088/0029-5515/25/11/001

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Radiated energy and impurity density changes during intensive hydrogen influx in the PLT tokamak

Autor: F. C. Jobes, G. L. Schmidt, Einar Hinnov, H. Hsuan, J. Hosea, Szymon Suckewer, E. Meservey

Publikováno v: Nuclear Fusion. 22:325-332

During a discharge a puff of hydrogen is admitted, sufficient to more than triple the plasma density, and the resulting changes in various plasma parameters are determined. The absolute densities of various wall and limiter (carbon) materials are fou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::229dcb89b85c070e2c2524677d2c787d
https://doi.org/10.1088/0029-5515/22/3/002

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The effect of plasma surface interactions on plt plasma parameters

Publikováno v: Journal of Nuclear Materials. :267-271

This paper gives a brief description of the geometry and parameters of the PLT tokamak, reviews some of the last four years' results that are particularly relevant to plasma-boundary interactions, and then concentrates on two specific problems.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6403dbdf870895595bd0a82f6d7d3ea4
https://doi.org/10.1016/0022-3115(80)90333-5

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Top-versus-side launch of lower hybrid waves in PLT

Autor: T. K. Chu, S. Guharay, S. von Goeler, W. Hooke, R. W. Motley, R.E. Bell, J. Hosea, A. Cavallo, D. H. McNeill, S. Bernabei, E. Meservey, J. E. Stevens, F. C. Jobes

Publikováno v: Nuclear Fusion. 26:111-114

Experiments with the PLT 2.45 GHz system show that lower hybrid waves launched from the top of the tokamak torus are about half as effective for current drive as an identical spectrum of waves launched from the outside of the torus at intermediate de

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0dc0eeb143a0d01eb2cd81d3c20e1af4
https://doi.org/10.1088/0029-5515/26/1/011

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